1) Terephthalic acid (TPA), a raw material in the manufacture of polyester fiber, film, and soft drink bottles, is synthesized from p-xylene (PX) in the process shown below. (2.5P) PXC8H10+3O2TPAC8H6O4+2H2O (a) Taking 100kmol TPA produced/h as a basis of calculation, redraw and label a flowchart for the process. (b) What is the required fresh feed rate (kmolPX/h) ? (Hint: Use overall carbon, C balance) (c) Determine the volumetric flow rates in m3/h for i. the air fed to the reactor, ii. the gas leaving the reactor, and iii. the liquid water leaving the condenser. (Hint: Use overall O2,N2 and H2O balance to determine molar flow rates of all streams and assume ideal-gas behavior for the two gas streams, R=0.08206m3.atm/Kmol.K )